Nautel NX15, Руководство по устранению неисправностей

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NX25/NX15 Troubleshooting Manual Responding to alarms
Issue 5.0 2016-05-06 Page 1-7
Controller: Combiner
Interlock Open This alarm will only occur if the transmitter is connected in a
combined system. The alarm indicates that the interlock signal
from the combiner is open. When this alarm occurs, the
transmitter immediately inhibits the PDM and the transmitter's
output power drops to 0 W. If this condition persists for more than
10 seconds, the transmitter will inhibit the RF power modules,
fans and B+ power supply. The transmitter will automatically
recover when the condition is cleared. Check the combiner for a
condition that may cause it to open the interlock to the transmitter.
If so, troubleshoot the cause of that condition. If not, inspect the
wiring between the combiner and the transmitter and verify there
is no damage. If the alarm persists, replace the control/interface
PWB
(see “Control/interface PWB replacement” on page 1-60 ).
Controller: Controller
Reset This alarm is only visible in the transmitter logs, and indicates the
controller was reset because its +5 V power supply voltage was
less than 1.4 V, which normally happens due to a loss of ac power.
If the controller is rebooting without losing ac power to the
transmitter, check for the presence of other alarms at the time of
the controller reset and follow the troubleshooting information for
those alarms. Otherwise, replace the control/interface PWB
(see
“Control/interface PWB replacement” on page 1-60 ).
Alarm (with Prefix) Description and Troubleshooting Action